$25 I Bond with 0.00% Fixed Rate Purchased March 2017

 Jan
1
Feb
1
Mar
1
Infla
tion
Rate
Com
posite
Rate
Apr
1
May
1
Jun
1
Jul
1
Aug
1
Sep
1
Infla
tion
Rate
Com
posite
Rate
Oct
1
Nov
1
Dec
1
2017 25.001.38%2.76%25.0625.1125.1725.2325.2925.350.98%1.96%25.3925.4325.472017
201825.5225.5625.601.24%2.48%25.6525.7125.7625.8125.8625.921.11%2.22%25.9726.0226.062018
201926.1126.1626.21

From $25.00 to $26.21 over 2.0 years = 2.38% average annual increase compounded semi-annually.

Generated  05/01/18  10:11